[#bsl-function-0a-operator_assign-0f0f]
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:mrdocs:

Copy‐assign the target from `rhs` and return `*this`.

== Synopsis

Declared in `<bslstl_function.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:bsl/function-0a.adoc[bsl::function<PROTOTYPE>]&
operator=(xref:bsl/function-0a.adoc[function] const& rhs);
----

== Description

Set the target of this object to a copy of the target (if any) held by the specified `rhs` object, destroy the target (if any) previously held by `*this`, and return `*this`. The result is equivalent to having constructed `*this` from `rhs` using the extended copy constructor with allocator `this‐>get_allocator()`. If an exception is thrown, `*this` is not modified (i.e., copy assignment provides the strong exception guarantee).

== Return Value

reference providing modifiable access to this object

== Parameters

[cols="1,4"]
|===
| Name| Description
| *rhs*
| function whose target is copied into this object
|===


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